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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 951. |
Root-like, leaf-like and stem-like structures are present inA. BryophytesB. PteridophytesC. GymnospermsD. Both A and B |
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Answer» Correct Answer - A Root-like, leaf-like and stem-like structures are possessed by bryophytes. |
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| 952. |
Which group of plant has little economic importance but great ecological importance ?A. BryophytesB. PteridophytesC. GymnospermsD. Both A and B |
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Answer» Correct Answer - A Bryophytes are of little economic importance but great ecological importance. |
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| 953. |
Of the following, the false chracter with respect to Pinus isA. Bract and ovuliferous scalesB. Embryo with two cotyledonsC. Resin canals in needlesD. Tracheids with bordered pits |
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Answer» Correct Answer - b In Pinus embryo with 3 to 18 cotyledons. |
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| 954. |
In pteridophytes, well-differentiated vascular tissues are found inA. RootsB. StemsC. LeavesD. All of the above |
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Answer» Correct Answer - D In pteridophytes well-differentiated vascular tissues are found in root, stem and leaves. |
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| 955. |
Plant body is differentiated in hold fast, stipe and frond inA. UlvaB. LaminariaC. OedogoniumD. Acetabularia |
| Answer» Correct Answer - B | |
| 956. |
The plant body of higher plants is well differentiated and well developed. Roots are the organs used for the purpose of absorption. What is the equivalent of roots in the less developed lower plants? |
| Answer» Roots are represented by root like structure caleld rhizoids in less developed flower plants (bryophytes and pteridophytes ) . The plant tissue system in these is not differentiated into true leaf, stem and roots as it is found in higher plants (gymnosperm and angiosperm ) | |
| 957. |
The winged pollen grain of Pinus sp. Are produced inA. Pollen chamberB. AntherC. TapetumD. Microsporangium |
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Answer» Correct Answer - d Winged pollen grains produced in microporangium which representws the male gametophyte of Pinus. |
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| 958. |
Male prothallus (gametophyte) in Pinus is havingA. 1 prothallial cellB. 2 prothallial cellsC. 4 prothallial cellsD. A mass of cells |
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Answer» Correct Answer - b Male prothallus (gametophyte) in Pinus is having two prothallial cells and one tube cell. |
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| 959. |
Which one controls dehiscence of sporangium in DryopterisA. AnnulusB. TapetumC. SorusD. Indusium |
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Answer» Correct Answer - a They develop a thickening along their radial and inner tangential walls. This layer is called annulus. |
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| 960. |
Mannitol (sugar alcohol) is the stored food inA. FucusB. GracillariaC. CharaD. Porphyra |
| Answer» Correct Answer - A | |
| 961. |
Assertion : Plants lead to the formation of different plants bodies-haploid gametophyte and diploid sporophyte Reason : In plants, both haploid and diploid cells can divide by mitosis.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true and but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - A Plants leads to the formation of different plant bodies-haploid gametophyte and diploid sporophyte because in plants, both haploid and diploid cells can be divided by mitosis. |
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| 962. |
Which of the following cells of embryo sac degenerate after fertilisation in angiosperms ?A. SynergidsB. Polar nucleiC. Antipodal cellsD. Both (1) & (3) |
| Answer» Correct Answer - D | |
| 963. |
Evolution of seed habit first started inA. Selaginella like ancestral pteridophytesB. Psilotum like ancestral pteridophytesC. GymnospermsD. Mosses |
| Answer» Correct Answer - A | |
| 964. |
Most distinct type of alternation of generations is demon- strated byA. AngiospermsB. FernsC. GymnospermsD. Bryophytes |
| Answer» Correct Answer - B | |
| 965. |
Presence of motile stage in life cycle & requirement of water as a medium to complete life cycle is diagnostic characters ofA. ThallophytaB. BryophytaC. PteridophytaD. Cryptogams |
| Answer» Correct Answer - D | |
| 966. |
Select the correct statement.A. Gymnosperms are both homosporous and heterosporousB. Salvinia, Ginkgo and Pinus all are gymnospermsC. Squoia is one of the tallest trees.D. The leaves of gymnosperms are not well adapted to extremes of climate |
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Answer» Correct Answer - C Gymnosperms are only heterosporous Ginkgo and Pinus all are gymnosperms The leaves of gymnosperms are well adapted to extremes of climate Salvinia is a pteridophyte. |
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| 967. |
Which of the following is a correct match of algal class with its characteristic reserve food?A. Chlorophyceae-starchB. Phaeophyceae-Mannitol,laminarinC. Rhodophyceae-Floridean starchD. all of these. |
| Answer» Correct Answer - D | |
| 968. |
Assertion: Red colour of rhodophyta is due to abundant formation of r-phycoerythrin. Reason: r-Phycoerythrin is able to absorb blue green wavelength of light and reflect red colour.A. If both assertion and reason are true and reason is the correct explanation of assertion.B. if both assertion and reason are true but reason is not the correct explanation of assertionC. if assertion is true but reason is false.D. if both assertion and reason are false. |
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Answer» Correct Answer - B The red colour or red algee (Rhodohyta) is due to abundant formation of r-phycoerythrin.Phycoerythin absorb blue green wavelengths of light and reflect red ligth and thus imparts red colours to algee. |
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| 969. |
Food reserve in Rhodophyta is :-A. floridean starchB. laminarian starchC. animal starchD. none of these |
| Answer» Correct Answer - A | |
| 970. |
The red colour of Rhodophyta is due to the preponderance ofA. PhycobilinsB. PhycocyaninC. PhycoerythrinD. Xamthophyll |
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Answer» Correct Answer - C The red colour of Rhodophytes is due to the preponderance of phycoerythrin. |
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| 971. |
Algae attached to stone is calledA. EpilithicB. EpifolicC. CoenolithicD. None of these |
| Answer» Correct Answer - a | |
| 972. |
Select the wrong statementA. Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamyB. Isogametes are similar in structure. Function and behaviourC. Anisogametes differ either in structure, function or behaviourD. In Oomycetes female gamete is smaller and motile, while male gamete is larger and non-motile. |
| Answer» Correct Answer - d | |
| 973. |
Monoeclous plant of Chara shows occurrence ofA. Upper oogonium and lower antheridium on the same plantB. Antheridiophore and archegoniophore on the same plantC. Stamen and carpel on the same plantD. Upper antheridium and lower oogonium on the same plant |
| Answer» Correct Answer - a | |
| 974. |
Monoecious plant of Chara shows occurrence ofA. Stamen and carpel on the same plantB. Upper antheridium and lower oogonium on the same plantC. Upper oogonium and lower antheridium on the same plantD. Antheridiophore and archegoniophore on the same plant |
| Answer» Correct Answer - C | |
| 975. |
Monoceius plant of Chara shows occurrence ofA. Upper antherodium and lower oogonium on the same plantB. Upper oogonium and lower antherdium on the same plantC. Antheodiophore and archegoniophore on the same plantD. Stamen and carpel on the same plant |
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Answer» Correct Answer - B Monoecious plant of chara shows occurrence of upper oogonium and lower antheridium on the same plant. |
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| 976. |
Monoeclous plant of Chara shows occurrence ofA. stamen and carpel on the same plantB. upper antheridium and lower oogonium on the same plantC. upper oogonium and lower antheridium on the same plantD. antheridiophere and archegoniophore on the same plant |
| Answer» Correct Answer - C | |
| 977. |
Archegonium of Funaria secretes mucilage rich inA. sucroseB. malic acidC. glucoseD. citric acid |
| Answer» Correct Answer - B | |
| 978. |
The heterosporous pteridophyte show certain characteristics, which are precursor to the seed habit in gymnosperms. Explain |
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Answer» Heterospory, i.e., production of two types of spores smaller microspores and larger megaspore was first reported in Selaginella a pteridophyte. In Selaginella, the smaller microspores are destined to produce male gametophytes and the larger megaspores to female gametophyte. The male gametophyte produced male gametes, whereas the female gametophyte produces archegonia and also provides nourishment to the developing embryo. The phenomenon of heterospory, thus lead to the reduction of gametophyte in situ gemination of spores, retntion of megagametophyte in the megasporangia and finally to the seed development , Thus the heterospory in Selaginella forms the base for seed habit development in gymnosperms. |
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| 979. |
In ferm, young leaves are protected byA. RhizomeB. IndusiumC. SoriD. Ramenta |
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Answer» Correct Answer - d Ramenta: It is hairy structure which cover juvenile leaves in ferms. |
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| 980. |
Cycas isA. monoeciousB. bisexualC. dioeciousD. hermaphrodite |
| Answer» Correct Answer - C | |
| 981. |
Sporangia are found in fruiting structures called sporocarps in aquatic fems, which of the following is aquatic fernA. AzollaB. SelaginellaC. PteridiumD. Equisetum |
| Answer» Correct Answer - A | |
| 982. |
Algae are useful because theyA. purify the atmosphereB. are large in numberC. are used in fermentationD. are used to study respiration |
| Answer» Correct Answer - A | |
| 983. |
Which of the following is not involved in the fertilization of fermA. Pollen tubeB. WaterC. ArchegoniaD. Flagellated sperms |
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Answer» Correct Answer - a No pollen tube to carry sperms. |
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| 984. |
Secondary growth occur in which pteridophyteA. AzollaB. SalviniaC. lsoetesD. Selaginella |
| Answer» Correct Answer - C | |
| 985. |
Which pteridophyte is called as horse-tailA. EquisetumB. LycopodiumC. MarsileaD. Selaginella |
| Answer» Correct Answer - A | |
| 986. |
The dehiscence of sporangia of fern occurs throughA. AnnulusB. StomiumC. ElatersD. Sori |
| Answer» Correct Answer - A | |
| 987. |
Which one has the maximum number of chromosomes?A. MarsileaB. EquisetumC. OphioglossumD. Lycopodium |
| Answer» Correct Answer - C | |
| 988. |
Algae are important, we should study algae becauseA. They are good organisms to experiment withB. They can be grown in large tank culturesC. They may form important constituent of humna food (diet) in future.D. They produce oxygen and organic acids. |
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Answer» Correct Answer - c Many algae important constituent of human food in future because the algae can gow easily and obtained protein, lipid carbohydrateand vitamins e.g., Chlorella, Ulva. |
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| 989. |
One of the following is a pteridophyte.A. CycasB. SphagnumC. NephrolepisD. All above |
| Answer» Correct Answer - C | |
| 990. |
Ferm stele isA. DictyosteleB. SiphonosteleC. OeiriarwkwD. None of these |
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Answer» Correct Answer - a Dictyostele: A siphonostele perforated by several overlapping leaf gaps. Each separate starand is called meristele. E.g.,Dryopteris. Pteridium, Pteris etc. |
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| 991. |
The Sporophytes in Nephrolepis is....... and the spores areA. Diploid, haploidB. Haploid, haploidC. Haploid, diploidD. Diploid, diploid |
| Answer» Correct Answer - A | |
| 992. |
In the Chlorophyta, the reserve food of protein surrounded by starch, form a compact body termed.A. ParamylumB. PyrenoidC. VolutinD. Eye spot |
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Answer» Correct Answer - b Pyrenoids are the rounded bodies found in the chloroplst of green algae and are the centres of conversion of glucose to starch and also collection of starch. |
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| 993. |
Algae are in the same major group of plants as are theA. MossesB. LiverwortsC. FungiD. Fems |
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Answer» Correct Answer - c Because algae and fungi are the members of thallophyta. |
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| 994. |
Spore of ferm representsA. Sporophytic stageB. Gametophytic stageC. Sporophytic and gametophytic stageD. Apomictic stage |
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Answer» Correct Answer - b Spores of ferms are always haploid so they represent gametophytic stage. |
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| 995. |
The sporangia of eusporangiate fermsA. Possess a single layer of wall cellsB. Produce very few sporesC. Originate from a group of initial cellsD. Dehisce at the region of a well-defined stomium |
| Answer» Correct Answer - C | |
| 996. |
Spores with elaters are characteristic ofA. LycopodiumB. EquisetumC. AdiantumD. Marchantia |
| Answer» Correct Answer - B | |
| 997. |
Gemmae are multicellular green structures for vegetative propagation. These are found inside gemma cups inA. riccia capsuleB. marchantia thallusC. funaira protonemaD. polytrichum thallus. |
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Answer» Correct Answer - B In marchantia the plant body consists of a dorsiventrally flattened, prostrate and dichotomosouly branched thallus. The thalli are conspicuous, apex of each thallus is notched. Along the mid-rob are present characteristic, prominent goblet or cup-shaped structres, the gemma cups, with smooth, dentate or frilled margins. these cups enclose asexual reproductive bodies called gemma. |
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| 998. |
Gemmae are the specialised structures produced in liverworts. These areA. non-green,mlticellular, asexual buds which develop in gemma cupsB. green, multicellular, asexual buds which develops in gemma cupsC. non-green, multicellular, diploid, sexual sporesD. green,unicellular, diploid, sexual spores. |
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Answer» Correct Answer - B Gemmae are green multicellular asexual buds, which develop in small receptacles called gemma cups located on the thalli. Gemmae becomes detached from parent body and germinate to form new individuals. |
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| 999. |
Gemmae areA. Unicelled structuresB. Multicelled asexual budsC. Diploid sporophytic structuresD. Haploid sexual structures |
| Answer» Correct Answer - B | |
| 1000. |
Most of the gymnosperms haveA. Only antheridiaB. Both anteridia and archegoniaC. Archegonia but not antheridiaD. Both absent |
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Answer» Correct Answer - c Archegonia is found in bryophytes, pteridophytes and gymnosperms and antheridia occurs in bryophytes and pteridophytes. |
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